Equipment - Thermostat (Hd Display) - Lennox iComfort S30 Installation And Setup Manual

HEATING INDOOR BLOWER ON DELAY
The range is 15 - 45 seconds with a default setting base on equipment type
match-up. Adjustment are increments of 5 seconds.
HEATING AIRFLOW CONTROL TYPE
Options for this setting are fixed CFM or fixed DAT (discharge air temperature).
Default is dependent on equipment type match-up.
Fixed CFM is selected as the Heating Airflow Control Type (parameter default
selection), the circulator will operate at a CFM that is linearly interpolated between
Low Heating Airflow and High Heating Airflow based on the current IFC firing rate.
For example, if the firing rate is 60% and Low Heating Airflow and High Heating
Airflow were set to 500 CFM and 900 CFM respectively (both parameter values are
set during the IFC commission), the circulator will run at 633 CFM (= 500+
(900-500) *(60-40)/(100-40)) – assuming 40% minimum fire rate
Fixed Discharge Air Temperature (DAT) control when selected as Heating
Airflow Control Type, the IFC will vary circulator at a CFM to maintain a set
Discharge Air Temperature (DAT). For example if the firing rate is 60% and Low
Heating DAT and High Heating DAT were set to 120°F and 130°F respectively
(both parameter values are set during the IFC commission), the IFC will control the
circulator to maintain a DAT at 120°F (115+ (130-115) *(60-40)/(100-40)) –
assuming 40% minimum fire rate.
When Fix DAT is enabled, the following parameters are available:
Parameter Name
Low Heating Discharge Temp
High heating Discharge Temp
LOW HEATING AIRFLOW
The range is 500 - 700 CFM with a default setting based on equipment type
match-up. Adjustments are in increments of 25 CFM. This value is automatically
adjusted by the system based on heating airflow control type used.
HIGH HEATING AIRFLOW
The range is 1150 - 1575 CFM with a default setting based on equipment type
match-up. Adjustments are in increments of 25 CFM. This value is automatically
adjusted by the system based on heating airflow control type used.
RESET FURNACE
Any installer modifications under the furnace tab will be reset back to the factory
defaults if the reset furnace option is used.
Description
Range is 105 to 135°F. Adjustable in
increments of 5F. Default is 120°F.
Range is 115 to 145°F. Adjustable in
increments of 5F. Default is 130°F.
THERMOSTAT (HD DISPLAY)
ABOUT
This screen provides information concerning model number, serial number,
hardware revision, software revision, language support and equipment type name.
SCREEN LOCKED
Options are unlocked, partially locked and locked. Default is unlocked.
DISPLAY OUTDOOR WEATHER
Options are on and off. Default is off.
DISPLAY AIR QUALITY
Options are on and off. Default is off. Air Quality is displayed under the weather
display. Press the Weather icon on the home page to see the current air quality.
OUTDOOR TEMPERATURE
Options are Internet, sensor or off. Default is sensor.
DISPLAY INDOOR HUMIDITY
Options are on and off. Default is off.
SCREEN SAVER
Options are off, weather, power save and picture. Default is off.
AUTO BRIGHTNESS
Options are on and off. Default is off.
BRIGHTNESS VALUE
The brightness range is 0 - 100. Default 80. Press either the + or - button to increase
or decrease the setting.
PROXIMITY CONTROL
Options are ON and OFF. Default is OFF. This is used to determine if the home is
occupied.
RESET THERMOSTAT
Any installer modifications under the thermostat tab will be reset back to the factory
defaults if the reset thermostat option is used.
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